Thermally Stable Mesoporous Perovskite Solar Cells Incorporating Low-Temperature Processed Graphene/Polymer Electron Transporting Layer
| Autor: | Janardhan Balapanuru, Shi Wun Tong, Deyi Fu, Kian Ping Loh |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Work (thermodynamics) Materials science Graphene Energy conversion efficiency Nanotechnology 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry law General Materials Science Thermal stability Transmission coefficient 0210 nano-technology Mesoporous material Perovskite (structure) |
| Zdroj: | ACS Applied Materials & Interfaces. 8:29496-29503 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.6b10278 |
| Popis: | In the short time since its discovery, perovskite solar cells (PSCs) have attained high power conversion efficiency but their lack of thermal stability remains a barrier to commercialization. Among the experimentally accessible parameter spaces for optimizing performance, identifying an electron transport layer (ETL) that forms a thermally stable interface with perovskite and which is solution-processable at low-temperature will certainly be advantageous. Herein, we developed a mesoporous graphene/polymer composite with these advantages when used as ETL in CH3NH3PbI3 PSCs, and a high efficiency of 13.8% under AM 1.5G solar illumination could be obtained. Due to the high heat transmission coefficient and low isoelectric point of mesoporous graphene-based ETL, the PSC device enjoys good chemical and thermal stability. Our work demonstrates that the mesoporous graphene-based scaffold is a promising ETL candidate for high performance and thermally stable PSCs. |
| Databáze: | OpenAIRE |
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